Warning: Permanently added '10.128.15.219' (ECDSA) to the list of known hosts. executing program [ 55.908231] kauditd_printk_skb: 5 callbacks suppressed [ 55.908257] audit: type=1400 audit(1545722609.063:36): avc: denied { map } for pid=8413 comm="syz-executor580" path="/root/syz-executor580018885" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 55.916677] ------------[ cut here ]------------ [ 55.945384] do not call blocking ops when !TASK_RUNNING; state=1 set at [<000000000a215369>] n_hdlc_tty_read+0x301/0x7f0 [ 55.957062] WARNING: CPU: 0 PID: 8413 at kernel/sched/core.c:6099 __might_sleep+0x13d/0x190 [ 55.965541] Kernel panic - not syncing: panic_on_warn set ... [ 55.971415] CPU: 0 PID: 8413 Comm: syz-executor580 Not tainted 4.20.0 #167 [ 55.978407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.987745] Call Trace: [ 55.990331] dump_stack+0x1d3/0x2c6 [ 55.994036] ? dump_stack_print_info.cold.1+0x20/0x20 [ 55.999219] panic+0x2ad/0x55c [ 56.002403] ? add_taint.cold.5+0x16/0x16 [ 56.006540] ? __warn.cold.8+0x5/0x45 [ 56.010325] ? __warn+0xe8/0x1d0 [ 56.013678] ? __might_sleep+0x13d/0x190 [ 56.017723] __warn.cold.8+0x20/0x45 [ 56.021429] ? rcu_softirq_qs+0x20/0x20 [ 56.025384] ? __might_sleep+0x13d/0x190 [ 56.029426] report_bug+0x254/0x2d0 [ 56.033050] do_error_trap+0x11b/0x200 [ 56.036937] do_invalid_op+0x36/0x40 [ 56.040637] ? __might_sleep+0x13d/0x190 [ 56.044684] invalid_op+0x14/0x20 [ 56.048121] RIP: 0010:__might_sleep+0x13d/0x190 [ 56.052793] Code: 65 48 8b 1c 25 40 ee 01 00 48 8d 7b 10 48 89 fe 48 c1 ee 03 80 3c 06 00 75 2b 48 8b 73 10 48 c7 c7 40 e0 2a 88 e8 43 27 f3 ff <0f> 0b e9 43 ff ff ff e8 f7 7c 6c 00 e9 26 ff ff ff e8 ed 7c 6c 00 [ 56.071679] RSP: 0018:ffff8881c1417948 EFLAGS: 00010286 [ 56.077024] RAX: 0000000000000000 RBX: ffff8881b47e0680 RCX: 0000000000000000 [ 56.084277] RDX: 0000000000000000 RSI: ffffffff8164e045 RDI: 0000000000000005 [ 56.091529] RBP: ffff8881c1417978 R08: ffff8881b47e0680 R09: ffffed103b5c5020 [ 56.098779] R10: ffffed103b5c5020 R11: ffff8881dae28107 R12: ffffffff8860b220 [ 56.106029] R13: 0000000000000019 R14: 0000000000000000 R15: ffff8881b47e0680 [ 56.113309] ? vprintk_func+0x85/0x181 [ 56.117230] ? __might_sleep+0x13d/0x190 [ 56.121299] __might_fault+0xc6/0x1e0 [ 56.125083] _copy_to_user+0x30/0x110 [ 56.128870] n_hdlc_tty_read+0x5c1/0x7f0 [ 56.132920] ? n_hdlc_tty_poll+0x5f0/0x5f0 [ 56.137139] ? wake_up_q+0x100/0x100 [ 56.140853] ? ldsem_down_read+0x32/0x40 [ 56.144911] ? ldsem_down_read+0x32/0x40 [ 56.148955] tty_read+0x194/0x2a0 [ 56.152396] ? n_hdlc_tty_poll+0x5f0/0x5f0 [ 56.156620] __vfs_read+0x117/0x9b0 [ 56.160234] ? __fget_light+0x2e9/0x430 [ 56.164192] ? tty_poll+0x1a0/0x1a0 [ 56.167801] ? vfs_copy_file_range+0xb90/0xb90 [ 56.172377] ? __might_sleep+0x95/0x190 [ 56.176338] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 56.181858] ? __inode_security_revalidate+0xd9/0x120 [ 56.187032] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 56.192033] ? selinux_file_permission+0x90/0x540 [ 56.196861] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.202427] ? security_file_permission+0x1c2/0x230 [ 56.207426] ? rw_verify_area+0x118/0x360 [ 56.211557] vfs_read+0x17f/0x3c0 [ 56.215010] ksys_read+0x101/0x260 [ 56.218535] ? kernel_write+0x120/0x120 [ 56.222500] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 56.227961] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.233490] ? ksys_ioctl+0x81/0xd0 [ 56.237103] __x64_sys_read+0x73/0xb0 [ 56.240894] do_syscall_64+0x1b9/0x820 [ 56.244770] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 56.250121] ? syscall_return_slowpath+0x5e0/0x5e0 [ 56.255031] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.259861] ? trace_hardirqs_on_caller+0x310/0x310 [ 56.264873] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 56.269874] ? prepare_exit_to_usermode+0x291/0x3b0 [ 56.274893] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.279738] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.284935] RIP: 0033:0x440099 [ 56.288128] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.307028] RSP: 002b:00007ffcbde5a218 EFLAGS: 00000207 ORIG_RAX: 0000000000000000 [ 56.314723] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440099 [ 56.321979] RDX: 0000000000000057 RSI: 0000000020000080 RDI: 0000000000000003 [ 56.329246] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 56.336513] R10: 00000000004002c8 R11: 0000000000000207 R12: 0000000000401920 [ 56.343796] R13: 00000000004019b0 R14: 0000000000000000 R15: 0000000000000000 [ 56.352206] Kernel Offset: disabled [ 56.355886] Rebooting in 86400 seconds..